Searching for Conrad Hopler (1730-1816), a 6X great grandfather of mine, lead to the two featured colonial deeds. Joseph "Hoppel" was Conrad's father. Frederick DeMouth was Conrad's father-in-law. The land was purchased before Conrad Hopler married Elizabeth DeMouth, forever tying the two lines. Were they connected before this marriage?

There are online mentions that Frederick DeMouth was a French Huguenot and the first settler of what is now Boonton Township in Morris County.

I want to locate the present-day location of the properties purchased in these deeds. The properties are described as lying in Morris County- no town or specific region. By hand I sketched the boundaries to help locate these plots on a map. Then I remembered that there is probably an app for this and was pleasantly surprised to find one at GenealogyTools.

The larger, 600 acre piece of property may be easier to identify on a map because its irregular borders. The white oak tree and piles of stones are probably long gone. The Rockaway River touches both these pieces of land and still exists today.

The brook called "Rottegie Vall" was intriguing. No mention of this brook online, but instead in a book called The History of Morris County, New Jersey, published by Munsell in 1882. Ancestry offers a digitized version, but my paper copy is much clearer (thank you MT).

"A brook called by the Dutch Rotegeval, a branch of the Rockaway River."

The will of Frederick Temouth (notice the variant spelling), was proved in 1766 and mentions several pieces of real property; one was near the Rockaway River. Another was a "plantation where I dwell, of 600 acres." This could be the 600 acre conveyance from 1748. If Frederick was "of Pequannock," these 600 acres could be in Pequanock. A land survey from this time period may be helpful. If anyone knows of one, please write in.

I don't know of Frederick DeMouth's burial place, but the DeMouth burial ground is in present-day Boonton.

This Indenture, made this twenty seventh day of September
in the year of Our Lord one thousand Seven hundred and forty eight. Between John
Burnet and Samuel Nevill, both
of the City of Perth Amboy in the Province of New Jersey, Gent, of the one part
and Fredrick Demouth, Adam Miller, Joseph Hoppel, John Snider,
and Felton Smith, all of the County
of Morris and Province afforsaid, yeoman, of the other Part. Witnesseth that the said John Burnet and
Samuel Nevill, for and in consideration of the just and full sum of two hundred
and thirty two Pounds current money of this Said Province at eight shills [?]
ounce to them in hand by the aforesaid Fredrick Demouth, Adam Miller, Joseph
Hoppel, John Snider, and Felton Smith, at and before the ensealing and delivery
hereof well and truly paid the receipt whereof the said John Burnet and Samuel
Nevill doth hereby acknowledge and themselves to be therewith fully satisfied
and contented and thereof doth acquit and discharge them, the s[aid] Fredrick
DeMouth, Adam Miller, Joseph Hoppel, John Snider, and Felton Smith, their heirs
and assigns for ever by these presents.
Hath granted, bargained, sold, aliened, ensealed, released, and
confirmed and by these presents doth grant, bargain, sell, alien, enseal,
release, and confirm unto the said Fredrick Demouth, Adam Miller, Joseph
Hoppel, John Snider, and Felton Smith, their heirs and assigns for ever, all
that certain tract or parcel of land situate in the County of Morris aforesaid.

Beginning at a white oak tree for a corner marked on four
sides standing at the West side of a brook called in the Dutch language
Rottegie Vall, on the East side of a hill it being also a corner of a former
survey made for and in the name of George
Ryerson Junr, and running from thence South forty seven degrees and forty
five minutes East forty one chains to a corner post standing on the plains from
thence South forty degrees west seventy one chains to a post corner standing on
the west side of said Rockaway River where a small spring runs in the said river. From thence north seventy two degrees west
forty five chains to a post corner from thence north six degrees east thirty
three chains to a heap of stones for a corner from thence north forty three
degrees east twenty chains to a heap of stones for a corner from thence south
sixty eight degrees east ten chains to a heap of stones for a corner from
thence north fifty two degrees east forty chains to the place of beginning.

Containing four hundred and twenty two acres and seventy
hundredths of an acre strict measure.
Together with all and all manner of houses, barns, orchards, trees,
woods, underwoods, fencings, foodings, pastures, profits, commodities,
advantages, hereditaments, and appurtenances whatsoever to the same belonging
or in any ways appertaining and all the estate right, title, interest,
property, claim, and demand whatsoever of them, the said John Burnet and Samuel
Nevill of, in, and to the above granted or bargained premises and of, in, or to
any part or parcel thereof, to have and to hold the above granted and bargained
premises and every part and parcel thereof with the appurtenances unto the said
Fredrick DeMouth, Adam Miller, Joseph Hoppel, John Snider, and Felton Smith,
their heirs and assigns, to the only proper [?] and behoof of the said Fredrick
Demouth, Adam Miller, Joseph Hoppel, John Snider, and Felton Smith, their heirs
and assigns for ever. And the said John
Burnet and Samuel Nevill for themselves, their heirs, executors, and
administrators do covenant, promise, grant, and agree to and with the said
Frederick Demouth, Adam Miller, Joseph Hoppel, John Snider, and Felton Smith
and to and with each and every of them, their heirs and assigns, by these
presents in manner and form following, that is to say, that he, the said John
Burnet, at the time of ensealing and delivery of these presents, hath full
power, good, right, and lawfull authority to grant, bargain, sell, and convey
three hundred and sixteen acres, part of the said four hundred and twenty two
acres above mentioned and every part and parcel thereof with their and every of
their appurtenances unto the said Fredrick Demouth, Adam Miller, Joseph Hoppel,
John Snider, and Felton Smith, their heirs and assigns in manner and form
aforesaid, and that he, the said Samuel Nevill, at the time of ensealing and
delivery of these presents, hath full power, good, right, and lawful authority
to grant, bargain, sell, and convey one hundred and six acres residue of the
said four hundred and twenty two acres above mentioned and every part and
parcel thereof with their and every of their appurtenances unto the said
Fredrick Demouth, Adam Miller, Joseph Hoppel, John Snider, and Felton Smith,
their heirs and assigns in manner and form aforesaid and that the said Fredrick
Demouth, Adam Miller, Joseph Hoppel, John Snider, and Felton Smith, their heirs
and assigns and every of them shall and may by force and virtue of these
presents, at all times for ever hereafter, lawfully, peaceably, and quietly hold
up, occupy, possess and enjoy the said granted and bargained lands and premises
with their and every of their appurtenances without any lawful lott suit
trouble, denial, interruption, evasion, or disturbance of the said John Burnet
and Samuel Nevill, their heirs or assigns or any other person or persons
whatsoever. And the said John Burnet and
Samuel Nevill, for themselves, their heirs, ex[ecutor]s and admin[istrator]s,
the said granted and bargained lands and premises with the appurtenances unto
the said Fredrick Demouth, Adam Miller, Joseph Hoppel, John Snider, and Felton
Smith, their heirs and assigns against all and every person and persons
lawfully claiming the same, shall and will warrant and for ever defend by these
presents.

In witness whereof the said John Burnet and Samuel Nevill
hath hereunto set their hands and seals the day and year above written.

The words (thirty two) in the fifth line and the erasures
in the twenty first line of the first page and the word ([?]) in the [?] line
of the second page being interlined and made before the signing and sealing
[?].

John Burnet LS

Samuel Nevill LS

Sealed and delivered in the presence of R L Hooper, Michael Henarie.

Received this 27th day of September 1748 the full sum of
two hundred and thirty two pounds, being full satisfaction for the within
mentioned premises.

John Burnet

Samuel Nevill

Be it remembered that on this twelfth day of April 1748,
the within John Burnet and Samuel Nevill appeared before James Alexander, one of his majesty’s council for the Province of
New Jersey, and acknowledged the within deed to be their act and deed for the
[?] therein mentioned.

Ja Alexander

Note the same words noted to be interlined in the
original are interlined in the record.
Page 112. The word north inter pa
113 the words bargained lands and intd [?] omitted in recording.

This Indenture made the
twenty seventh day of September in the year of Our Lord one thousand seven
hundred and forty eight, between Robert
Lettis Hooper of the County of Somerset and Province of New Jersey, Gent, of
the one part, and Frederick Demouth,
Martin VanDuyn, Christian Miller, Peter
Highler, Thos Stagg, Isaac VanDuyn, John Snider of the County of Morris in the Province of New Jersey,
yeomen, of the other Part. Witnesseth
that the said Robert Lettis Hooper, for and in consideration of the sum of three
hundred and forty six pounds ten shills current money at eight shillings the ounce
to him in hand by the aforesaid Frederick Demouth, Martin VanDuyn, Christian
Miller, Peter Highler, Thos Stagg, Isaac V Duyn, Jon Snyder, at and before the
Ensealing and Delivery hereof well and truly paid the receipt whereof the said
Robert Lettis Hooper doth hereby acknowledge and himself to be therewith fully
satisfied and contracted and thereof doth acquit and discharge them, the said
Fredrick Demouth, Martin VanDuyn, Christian Miller, Peter Highler, Thos Stagg,
Isaac Vanduyn, John Snyder, their heirs and assigns for ever by these Presents,
hath granted, bargained, sold, alien’d, enfect’d, releas’d and confirm’d and by
these presents doth grant, bargain, sell, alien, enfect, release and confirm
unto the said Fredrick Demouth, Martin Vanduyn, Christian Millor, Peter Highlor,
Thos Stagg, Isaac Vanduyn, John Snider, their heirs and assigns for ever, all
that certain Tract or Parcell of Land situate in the County of Morris
aforesaid.

Beginning at a post for
a corner standing in a line of Mr Burnet and Mr Nevills Survey about fifteen
Chains and Sixty links from the Spring on the West side of Rockaway River and
runs in said River by a corner of said Burnets and Nevills Land which said Post
bears a course North Seventy two degrees West from said Mr Burnet and Nevills
corner and thence along this line North Seventy two degrees west twenty nine
chains and forty links to a Post corner thence it runs South Six degrees West
nine chains to a Post for a corner from thence south fifty degrees west sixty
nine chains and a half to a heap of stones for a corner from thence north
thirty degrees west thirty two chains to be a heap of stones for a corner
thence south fifty degrees west twenty six chains to a post for a corner thence
south thirteen degrees west twenty eight chains to a post corner thence north
eighty degrees east nineteen chains to a heap of stones for a corner thence
south ten degrees west fifteen chains to a post for a corner thence south
thirty six degrees west thirty five chains to a post for a corner thence south
fifty four degrees east twenty three chains to a post standing on the west side
of Rockaway River from thence up the stream south five degrees east about eleven
chains to a large white oak for a corner standing on the east side of said
River on the south side of a road and about one chain below a cluster of pine
trees thence south seventy five degrees east twelve chains to a post corner,
from thence north thirty degrees east forty chains to a heap of stones on the
point of a hill on the south west side of said hill thence north forty eight
degrees east fifty five chains and seventy five links to a post for a corner
from thence north fifty degrees west seven chains to a post corner from thence north
forty degrees east sixty five chains and a half to the place of beginning.

Containing six hundred
and thirty acres strict measure which after allowance for highways is to remain
for six hundred acres, together with all and all manner of houses, barns,
orchards, trees, woods, underwoods, fencings, feedings, Pattins, Profits,
commodities, advantages, hereditaments, and appurtenances whatsoever to the
same belonging or in any wise appertaining (mines and minerals of all kinds
excepted) and all the estate, right, title, interest, property claim and demand
whatsoever of him, the said Robert Lettis Hooper, of in and to the above
granted or bargained promises and of in or to any part or parcel thereof (except
as before excepted).

To have and hold one
seventh part of the above granted and bargained premises and every part and
parcel thereof with the appurtenances unto the said Frederick Demouth, his
heirs and assigns to the only proper up[?] and behoof of the said Frederick
Demouth, his heirs and assigns for ever.

To have and to hold one
other seventh part of the said granted and bargained premises and every part
thereof unto the aforesaid Martin VanDuyn, his heirs and assigns to the only
proper up[?] and behoof of the said Martin VanDuyn, his heirs and assigns for
ever.

To have and to hold one
other seventh part of the said granted and bargained premises and every part
thereof unto the af[orese]d Isaac VanDuyn, his heirs and assigns to the only
proper up[?] and behoof of the said Isaac VanDuyn, his heirs and assigns for
ever.

To have and to hold one
other seventh part of the said granted and bargained premises and every part
thereof unto the aforesaid Peter Highler, his heirs and assigns to the only
proper up[?] and behoof of the said Peter Highler, his heirs and assigns for
ever.

To have and to hold one
other three seventh part of this said granted and bargained premises and every
part thereof unto the aforsd Christian Miller, Thos Stagg, and John Snider,
their heirs and assigns to the only proper up[?] and behalf of the said Chrs
Miller, Thos Stagg, and John Snider, their heirs and assigns for ever.

And the said Robert
Lettis Hooper for himself, his heirs, executors, and [?] doth covenant,
promise, grant, and agree to and with the said Frederick Demouth, Martin
VanDuyn, Isaac Vanduyn, Peter Highler, Christian Miller, Thos Stagg, and John
Snider, and to and with each and every of them, their heirs and assigns by these
presents in manner and form following, that is to say, that he, the said Robert
Lettis Hooper, at the time of the ensealing and delivery of these presents hath
full power, good, right, and lawful authority to grant, bargain, sell, and
convey all and singular the lands and premises above mentioned and every part
and parcel thereof with their and every of their appurtenances unto the said
Frederick Demouth, Martin Vanduyn, Isaac VanDuyn, Peter Highler, Christian
Miller, Thos Stagg, and John Snider, their heirs and assigns in manner and form
aforesaid, and that the said Frederick Demouth, Martin VanDuyn, Isaac VanDuyn,
Peter Highler, Christian Miller, Thos Stagg, and Jon Snider, their heirs and
assigns and every of them shall and may by force and virtue of these presents at
all times for ever hereafter lawfully, peaceably, and quietly hold up, occupy,
profit, and enjoy the said granted and bargained lands and premises with their
and every of their appurtenances without any lawful Lott Suit, trouble, denial,
interruption, evasion, or disturbance of the said Robert Lettis Hooper, his
heirs or assigns or any other person or persons whatsoever and [?] and the said
Robert Lettis Hooper, for himself, his heirs, exrs, and admrs the said granted
and bargained lands and premises with the appurtenances unto the s[ai]d Frederick
Demouth, Martin VanDuyn, Isaac Vanduyn, Peter Highler, Christian Miller, Thomas
Stagg and John Snyder, their heirs and assigns against all and every person and
persons lawfully claiming the same, shall and will warrant and for ever defend
by these presents.

In Wittness whereof the
said Robert Lettis Hooper hath hereunto set his hand and seal the day and year
above written.

Sealed and delivered in
the presence of Samuel Nevill. John
Burnet.

{The words (most) in
the twenty fifth line of the first page and the words (against all and every
person and persons lawfully claiming the same) in the second line of the third
page all being [?] before the signing and delivery hereof.}

R S Hooper

Be it remembered that
on the twelfth day of April one thousand seven hundred and fourty eight Samuel
Nevill Esq, one of the witnesses of the above deed, being duly sworn on the
holy Evangelist on his oath did declare that he saw the above Robert Lettis
Hooper seal and deliver the preceeding deed as his act and deed for the exo therein
mentioned before James Alexander, one of his Majesty’s Council for the Province
of New Jersey. Ja Alexander.

Recd this 27 of Sep 1748
the full sum of three hundred and forty six pounds, ten shillings being full
satisfaction for the within mentioned premises.
R L Hooper.

Note the same
interlineations noted to be in the original are in the record also the words
(John Snider) intd in the record are so in the original.